Meta description: Kalshi and Polymarket are using the same NFL affiliate code, showing how prediction markets are borrowing sportsbook acquisition tactics.

Tags: Kalshi, Polymarket, CFTC, NFL, New York, Sports Betting

Market platform: none-if-cross-platform

Category: Industry

Kalshi and Polymarket are both marketing new-user NFL offers through Rocky Top Insider under the affiliate code “ROCKY,” a sign that prediction-market platforms are moving deeper into the customer-acquisition machinery long used by U.S. sportsbooks. The offers differ in size, but the distribution model is the same: sports media, promo codes, and funded-account incentives tied to football season.

What are Kalshi and Polymarket offering under the ROCKY code?

Rocky Top Insider’s Kalshi promotion says new users who enter the code “ROCKY” can receive a $25 deposit match after depositing $25, for $50 in starting funds. The site’s Polymarket promotion says new users can receive a $50 bonus after depositing $10, for $60 in starting funds. Both offers are framed for new accounts, not existing users.

The mechanics matter less than the channel. Prediction-market operators are using the same retail funnel that sportsbooks have relied on for years: a sports publisher explains a promotion, the user enters a code, and the platform turns a reader into a funded account. That does not make the products legally identical, but it does show how sports contracts are pulling prediction-market companies toward familiar sports-betting acquisition tactics.

Rocky Top Insider lists state restrictions for Kalshi’s offer, including Arizona, Illinois, Massachusetts, Maryland, Michigan, Montana, New Jersey and Ohio. The offer page, rather than a court or regulator, is the source for that exclusion list. The restrictions are still notable because they overlap with states where prediction-market sports contracts have drawn scrutiny from gambling regulators and attorneys general.

Why does this matter beyond one affiliate code?

The shared code is a small example of a larger industry shift: sports have become central to the growth strategy for prediction-market platforms. InGame, applying Kalshi’s published fee formula to public trading data, estimated that sports accounted for 89% of Kalshi’s 2025 fee revenue. That figure was an outside calculation, not a Kalshi revenue disclosure.

Public reporting also shows how much capital is flowing into the sector. The Block and MarketScreener reported that Kalshi raised $1 billion in May 2026 in a Coatue-led round that valued the company at $22 billion. Those reports put the NFL promotions in a broader context: prediction markets are no longer niche political or macro-event venues competing only for traders. They are increasingly competing for mass-market sports users.

The NFL is an especially important test because it compresses attention, media coverage and repeat betting behavior into a weekly schedule. For a prediction exchange, more funded users can mean more counterparties, tighter markets and more durable liquidity. For regulators, the same activity raises a different question: when sports outcomes are marketed through promo codes and media affiliates, how much does the product resemble a sportsbook from the consumer’s point of view?

How are Kalshi and Polymarket regulated?

KalshiEX LLC is a CFTC-regulated designated contract market. That federal status is central to Kalshi’s argument that its event contracts fall under federal commodities law rather than state gambling regimes. State regulators have disputed that position in sports-related matters, and those fights are now shaping where and how Kalshi markets certain products.

Polymarket’s U.S. regulatory posture also changed after its acquisition of QCX LLC. CFTC records list QCX LLC, doing business as Polymarket US, as a designated contract market, and Polymarket’s own regulatory page says Polymarket US operates as a CFTC-regulated DCM. That distinction matters because older shorthand describing Polymarket only as an offshore or peer-to-peer venue no longer captures the U.S. entity’s regulatory status.

The two companies still have different histories, product structures and legal exposures. But in sports marketing, both are now appearing in the same affiliate environment. That is the industry signal: the regulated prediction-market fight is moving from court filings and agency orders into the same consumer channels that built online sports betting.

What have courts said about Kalshi’s legal position?

Kalshi’s best-known 2024 federal-court win did not concern sports. In KalshiEX LLC v. CFTC, the U.S. District Court for the District of Columbia rejected the CFTC’s effort to block Kalshi’s congressional-control contracts. That ruling mattered for event contracts, but it should not be read as a blanket judicial approval of sports markets.

Sports contracts have produced a separate set of state-level disputes. In New York, Kalshi sued state gaming officials after enforcement pressure over sports event contracts. On July 7, 2026, the U.S. District Court for the Southern District of New York denied Kalshi’s motion for a preliminary injunction in KalshiEX LLC v. Williams. The order did not end every issue in the case, but it was a concrete ruling against Kalshi’s request for early relief.

That New York order is important for the affiliate-promo story because it shows why legal status cannot be summarized only by federal registration. Kalshi’s DCM status is real. State gambling regulators’ objections are also real. The commercial question for platforms is how aggressively to acquire sports users while courts decide where federal commodities oversight ends and state gambling authority begins.

Is this a sportsbook-style affiliate model?

Yes, in distribution terms. Rocky Top Insider is a sports-content site using promo-code pages to send readers to trading platforms, the same basic structure used across the online sportsbook affiliate market. The presence of Kalshi and Polymarket in that channel does not determine their legal status, but it does show that prediction markets are adopting sportsbook-style user acquisition.

The language around these offers should be read with that incentive in mind. Affiliate pages are designed to convert readers, not to provide neutral market-structure analysis. For trade-press purposes, the news is not that one code is larger than another. The news is that prediction-market companies are paying attention to the same football audience, media inventory and signup windows as sports-betting operators.

That convergence creates a regulatory and competitive challenge. Sportsbooks operate under state licensing systems that govern advertising, promotions and bonus terms. CFTC-regulated event-contract exchanges argue that they operate under a federal framework. When both types of companies pursue the same sports customer through the same promotional channels, state regulators have more reason to test the boundary.

What comes next?

The next measurable development is not whether the “ROCKY” code remains live. The more important milestones are court rulings and agency actions that define how far CFTC-regulated exchanges can go in sports. New York’s July 7, 2026 preliminary-injunction order has already given state regulators one significant data point, while the underlying legal fight continues.

For the industry, the NFL promotions are a market signal rather than a legal answer. Kalshi and Polymarket are using sports-media affiliate channels because sports users are now central to prediction-market growth. Courts and regulators will decide whether that growth can continue under the federal exchange model, or whether state gambling rules will narrow the playbook before the NFL season ends.